Bendix was responsible to
Martin Marietta for two of the entry science
instruments-the upper atmospheric mass spectrometer
and the retarding potential analyzer-and one Martian
surface instrument-the seismometer. Design,
fabrication, assembly, and testing were conducted at
the Ann Arbor facilities.

Celesco Industries

Costa Mesa, Calif.

Celesco Industries built the
surface-sampler arm, housing, and drive mechanism that
picked up the surface samples and delivered them to
the lander instruments. Celesco acted as a
subcontractor to Martin Marietta.

Goodyear Aerospace
Corporation

Akron, Ohio

Goodyear was responsible to
Martin Marietta for the decelerator system used on the
lander. Goodyear personnel designed, built, and tested
the decelerator system and managed subtler. suppliers
and subcontractors

Itek was responsible to Martin
Marietta for all aspects of the lander camera system.
Itek produced and tested the cameras and their
supporting Earth-based ground reconstruction sets.
Itek also provided the computer software necessary to
operate and control the cameras and to drive the
ground reconstruction equipment in reconstructing the
photographs.

Jet Propulsion Laboratory

Pasadena, Calif.

JPL was responsible to NASA
for the orbiter and the mission control center (Space
Flight operations Facility). JPL also operated the
Deep Space Network.

Litton Industries,

Guidance and Control

Systems Division

Woodland Hills. Calif.

Litton contracted with NASA
for the production and integration of the design
technology used in the gas chromatograph-mass
spectrometer.

Martin Marietta Aerospace

Denver, Colo.

Martin Marietta was
responsible to NASA's Langley Research Center for the
overall integration of the Viking project and was
prime contractor for the lander and its subsystems
(designing, testing, and building the lander and
managing all lander Subcontractors). Martin Marietta
also designed and built the photo sensor array for the
Viking cameras, the temperature transducers, and the
x-ray fluorescence spectrometer. In addition, Martin
Marietta built the Titan IIIE launch vehicles used in
the project.

RCA Astro-Electronics
Division

Princeton, N.J.

As a subcontractor to Martin
Marietta, RCA designed, built, and tested the lander
communications subsystem, including an
ultrahigh-frequency radio transmitter, an antenna for
beaming signals to the orbiter, an S-band antenna for
broadcasting directly to Earth; and an S-band low-gain
unit to receive direct commands from Earth.

Rocket Research Corporation

Redmond, Wash.

Rocket Research, under
contract to Martin Marietta, was responsible for
developing and manufacturing the throttleable,
monopropellant -hydrazine, landing engines and the
control and deorbit engines.

Sheldahl, Inc.

Northfield, Minn.

For Martin Marietta, Sheldahl
designed and built four load-carrying high-altitude
balloons, which were used for the balloon
launch-decelerator test program for the lander, and
the disk-gap-band parachute used as part of the
decelerator system. Sheldahl also fabricated the
bioshields used to encapsulate the lander and the
lander leg covers.

Space and Missile

Systems Organization

(SAMSO)

Los Angeles, Calif.

SAMSO was the U.S. government
agency responsible for developing the Titan III launch
vehicle. The SAMSO 65S5 Aerospace Test Wing at Cape
Canaveral Air Force Station managed the Titan launch
facility and supported NASA in launching the Titan III
Centaur

Teledyne Ryan

San Diego, Calif.

Teledyne Ryan subcontracted
with Martin Marietta as designer, tester, and builder
of the radar altimeter and the terminal-descent and
landing radar used on the lander.

TRW Inc.

Redondo Beach, Calif.

As a subcontractor to Martin
Marietta, TRW built the biology and meteorology
instruments carried on the lander.